Bed bug bites are itchy and annoying, but they heal on their own within one to two weeks. In the meantime, a few simple treatments can cut the itch and prevent infection. The best starting point is a cold compress and an over-the-counter hydrocortisone cream, which together handle most cases without a doctor visit.
Start With Cold and Clean
Before you reach for any cream, wash the bites gently with soap and water. This removes bacteria from the skin’s surface and lowers your risk of infection, especially if you’ve already been scratching. An antiseptic soap works well here, but regular soap is fine too.
Next, press a cold, damp cloth or an ice pack wrapped in a thin towel against the bites for 10 to 15 minutes. Cold narrows the blood vessels near the skin’s surface, which reduces swelling and temporarily dulls the itch. You can repeat this several times a day as needed. For many people, cold alone provides enough relief to stop scratching.
Over-the-Counter Creams That Help
Hydrocortisone cream is the go-to topical treatment. It’s a mild steroid that calms inflammation and itching directly at the bite. You can find 1% hydrocortisone at any pharmacy without a prescription. Apply a thin layer to each bite up to twice a day, but don’t use it for more than seven consecutive days unless directed by a pharmacist or doctor. Longer use can thin the skin.
Calamine lotion is another option. It works differently, creating a cooling sensation on the skin as it dries, which soothes itching without any steroid. It’s especially useful if you have a large number of bites spread over a wide area, since you can apply it more liberally than hydrocortisone.
Topical antihistamine creams containing diphenhydramine can also reduce itching at the bite site. These block the histamine your body releases in response to the bug’s saliva, which is what causes the itch in the first place. One caution: don’t combine a topical antihistamine cream with an oral antihistamine containing the same ingredient, as doubling up can cause drowsiness or other side effects.
Oral Antihistamines for Widespread Itching
If the itching is keeping you up at night or the bites cover a large area of your body, an oral antihistamine can help from the inside out. Diphenhydramine (the active ingredient in Benadryl) is effective but causes drowsiness, which can actually be a benefit at bedtime when the itching feels worst. For daytime relief without the sleepiness, cetirizine or loratadine are better choices. All three are available over the counter.
Simple Home Remedies Worth Trying
A baking soda paste, made by mixing baking soda with just enough water to form a thick consistency, can be applied directly to bites and left on for 10 to 15 minutes before rinsing. Many people find it reduces itching, likely because the mild alkalinity helps neutralize irritation at the skin’s surface.
Witch hazel, applied with a cotton ball, acts as a mild astringent that can take the edge off inflammation. Aloe vera gel, particularly straight from the plant or a pure formulation without added fragrances, provides a cooling effect similar to calamine. These remedies won’t work as powerfully as hydrocortisone, but they’re gentle enough to reapply frequently and work well as a supplement between steroid applications.
How to Tell if Your Bites Are Bed Bug Bites
Before treating, it helps to confirm what bit you. Bed bug bites typically appear as small, flat or slightly raised red welts. The hallmark pattern is a line or cluster of three or more bites close together, sometimes called “breakfast, lunch, and dinner” because the bugs tend to feed in a row as they move along your skin. They most often show up on areas exposed during sleep: arms, shoulders, neck, and face.
Some people react strongly and develop blisters or hives. Others have no visible reaction at all. If you’re not sure whether you’re dealing with bed bugs, check your mattress seams and bed frame joints for tiny dark spots (fecal stains) or the bugs themselves, which are flat, oval, and reddish-brown, roughly the size of an apple seed.
Don’t Scratch: Infection Is the Real Risk
Bed bug bites themselves aren’t dangerous and don’t transmit diseases. The real problem is scratching. Breaking the skin opens a doorway for bacteria, which can lead to a secondary infection called cellulitis. Signs that a bite has become infected include increasing redness that spreads outward from the bite, warmth to the touch, swelling, pain that gets worse instead of better, and pus or fluid draining from the area. Fever or red streaks extending from the bite are more serious warning signs.
Keeping your nails short, applying anti-itch treatments consistently, and covering heavily scratched bites with a small bandage can all help you resist the urge to scratch.
When Bites Need Stronger Treatment
Most bed bug bites resolve completely within a week or two with the treatments above. In cases where the reaction is severe, with widespread hives, intense blistering, or swelling that doesn’t respond to over-the-counter products, a doctor may prescribe a stronger topical steroid. Triamcinolone 0.1% is one commonly prescribed option that delivers more anti-inflammatory power than what’s available on the shelf.
For the most severe reactions, a short course of oral steroids can bring rapid relief, though this is rarely necessary. Allergic reactions that involve difficulty breathing, swelling of the tongue or throat, or dizziness require emergency care, as these signal a systemic allergic response rather than a localized skin reaction.